[en] In this paper, the authors measure photoemission spectra of single crystal BaPb1-xBixO3 at liquid nitrogen temperature. Clear Fermi edges have been observed in the valence band spectra for metallic compositions. The valence band peak dominated by O 2p states does not show a rigid band shift with x. The gross features in the experimental density of states (DOS) agrees well with calculated DOS in the insulating phase rather than in the metallic phase
Source
Iye, Y.; Yasuoka, H; 578 p; ISBN 3-540-54914-5; 
; 1992; p. 165-168; Springer-Verlag New York Inc; New York, NY (United States); 2. ISSP international symposium on the physics and chemistry of oxide superconductors (PCOS-2); Tokyo (Japan); 16-18 Jan 1991; CONF-910191--; Springer-Verlag New York Inc., 175 Fifth Ave., New York, NY 10010 (United States)
; 1992; p. 165-168; Springer-Verlag New York Inc; New York, NY (United States); 2. ISSP international symposium on the physics and chemistry of oxide superconductors (PCOS-2); Tokyo (Japan); 16-18 Jan 1991; CONF-910191--; Springer-Verlag New York Inc., 175 Fifth Ave., New York, NY 10010 (United States)